STANDARD Chemistry Raoult's Law MCQ Question
The relative lowering in vapour pressure is proportional to the ratio of number of
solute molecules to solvent molecules
solvent molecules to solute molecules
solute molecules to the total number of molecules in solution
solvent molecules to the total number of molecules in solution.
Correct Answer
Detailed Explanation
The relative lowering of vapour pressure is given by Raoult's law, which states that it is proportional to the mole fraction of the solute, hence the ratio of solute molecules to the total number of molecules in solution.
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